R89M-F37C: PCIe 4.0 x8 to x16 Extension Cable (1-to-1), Gen4 x8 Bandwidth.
Supports PCIe 4.0 x8, compatible with Gen3/Gen4.
Finish Color: Black. Operating Temperature: -40°C to 80°C. Flame Retardant Rating: 94V0.
High-frequency, low-resistance, high-temperature resistant, anti-oxidation PCB material. Maintains shape with yellow crystal translucencyno whitening or darkening.
R89M Support split into two x4 channel: Requires motherboard support for x4x4x4x4 splitting. When connected to an MCIO splitter cable, the x8 channel can be divided into two x4 channels. Both channels retain Gen4 performance after splitting.